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(No Model.) 2 Sheets-Sheet 1.

E. P. CARPENTER.

REED ORGAN STOP ACTION.

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(No Model.) 2 sheets-sheet 2. E. P. CARPENTER.

REED ORGAN STOP ACTION.

No. 328,647. Patented Oct. 20, 1885.

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UNITED STATES PATENT tries.

EDNVIN I. CARPENTER, OF BRATTLEBOROUGH, VERMONT.

REED-ORGAN STOP-AOTlON.

SPECIFICATION forming part of Letters Patent No. 323,6 5, dated ()ctober 20, 1885.

Application filed December 17, 1884. Serial No. 150,552.

To aZZ whom it may concern.-

Be it known that I, EDWIN P. CARPENTER, a citizen of the United States, residing at Brat tleborough,in the countyoflVindham and State of Vermont, have invented certain new and useful Improvements in Organ-Actions; and I declare the following to be a description of my said invention sufliciently full, clear, and exact to enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

M y present invention relates to the construction, location, and arrangement of the operating-levers in connection with the back board of the brace, and to the expression-roll devices, in combination with the operatinglcvers, brace, and stop-pull mechanism, as more fully hereinafter explained, the particular subject-matter claimed being hereinafter definitely specified.

In the drawings, Figure 1 is a plan view showing so much of an organ-action as will illustrate the nature of my invention. Fig. 2 is a vertical section on line a; w, drawn to a somewhat larger scale; and Fig. 3 is a view showing a section of the back board of the brace and the manner of combining the muteoperating levers therewith.

In referring to the drawings, A denotes the reed-board, B the keyframe, O the manual keys, and D the mutes, all of which parts may be of ordinary construction and arrangement.

E indicates the brace, and F the stop-pulls, arranged therein as shown, and provided with tumblers f,for depressing the ends of the muteoperating levers I when the pulls are drawn outward.

The back board or piece, E, of the brace is provided with a longitudinal groove or channel, 6, extending along its lower front edge, in which groove the l'ulcrums or central portions of the wire levers I are supported and retained by suitable blocks or fastening devices, d, as illustrated. The upper or forward ends of the wirelevers I are bent at right angles and arranged to extend transversely across the tumblers f, as at 1', while their lower ends are provided with coupling devices I, to which are detachably connected the wires J, that (No model.)

work the mutes D, which latter are made to operate in the usual manner. Notches e are formed at the lower edge of the back piece, E, for receiving the dependent portion of the levers I. By providing the back piece, E, of the brace with the groove eand arranging the fulcrums of the levers I directly in connection therewitlnsaid piece E is the only support required for both levers and stops, and thus a very simple and easily-constructed mechanism is produced,while quite a saving is effected in the amount of stock and laborcmployed over that required by the ordinary manner of construction and arrangement. This construction of the back board or piece, E, and the fulcrnming of the levers directly thereto is a feature of my invention.

K denotes the expression-roll, which I 10- cate within the brace directly in rear of the name-board above the manual 0 and beneath the stop-pulls F. The ends of the roll K are journaled or supported in or upon the end pieces or transoms, E, of the brace, and said roll is provided with a backward-projecting arm, L, or device for imparting a rocking action to the roll. Said arm L is connected by a link, m, tc the cranked end in of the rockerrod M, which latter is connected to and operated by the knee-swell N in the usual manner, by the rod or. The roll K is provided with a series of backward projections, arms, or pins, 1 that extend over the transverse ends 1' of the operating-levers I, and by means of which the several levers I are simultaneously depressed when said roll K is actuated by the knee-swell mechanism or other actuating devices.

By arranging the parts K and L as shown I am enabled to make the connections at m in rear of the key-frame and without cutting through the manual,while a very simple, compact, and desirable mechanism is produced.

The expression'roll devices and lever de vice are made up in connection with the brace in a manner that permits of their ready and convenient removal from the key-frame action to give access to the keys and keyframe, the brace being connected to the latter by hooks h and dowels a at either end, while the levers I and mute-links J are joined by a detachable look at the joint 1.

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Vhat I claim as of my invention, and desire to secure by Letters Patent, is

1. In an organ-action, the back piece, E, of the brace, provided with the groove 6, in combination with the muteopcrating levers I,fulcrumed and supported directly on said grooved back piece, substantially as hereinbefore set forth.

2. The combination, as described, of the brace E, having the grooved back piece, E e, detachably secured to the key-frame B, the wire levers I, fulcrumed on said brace, the stop-pulls F, having mechanism for operating said levers, the mute D, and connect-inglink J, detachably connected to said levers at 1, substantially as shown and described.

3. The combination, substantially as hereinbefore described, of the brace E, provided with the grooved back piece, E, the mutebpcrating levers I, fulcrumed thereon and pr0- vided with transversely offset top ends, z, the stop-pulls F, having a tumbler, f, for engaging and depressing said levers, the expressionroll K, mounted within the brace and having projections or pins 1?, for engaging the endsi of said levers, and the arm L, connected with actuating devices, as m M, for the purposes set forth.

Witness my hand this 11th day of December, A. D. 1884.

EDXVIN I. CARPENTER. Witnesses:

WILLIAM S. NEWTON, MARTIN AUSTIN, Jr. 

